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CS8800 WATER HEATER PILOT BURNER ASSEMBLY
Fig. 1. Mount pilot burner on main burner.
3. Mount the pilot burner so the ignition flame
remains properly positioned with respect to the
main burner flame.
4. Supply the pilot flame with ample air that is free
of combustion products.
5. Do not impinge the pilot flame on adjacent parts.
Do not impinge the main burner flame on the pilot
burner.
6. Do not expose the pilot flame to falling scale that
could impair ignition of the main burner.
7. Do not expose the pilot burner to the main burner
rollout while igniting or extinguishing.
8. Do not expose the pilot flame to drafts that push
or pull the pilot flame away from the thermopile.
STARTUP AND CHECKOUT
Perform Gas Leak Test
WARNING
Fire or Explosion Hazard.
Can cause property damage, serious injury
or death.
Check for gas leaks with soap and water solution
any time work is done on a gas system.
Gas Leak Test
1. Ensure that the gas supply is turned on at the
appliance service valve.
2. Paint the pipe connections upstream from the pilot
burner with a rich soap and water solution. Bubbles
indicate a gas leak.
3. If a leak is detected, tighten the pipe connections.
4. Stand clear of the main burner while lighting to
prevent injury from hidden leaks that could cause
flashback in the appliance vestibule. Light the main
burner.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark
© 2008 Honeywell International Inc.
69-1863—03
M.S. Rev. 07-08
M13697
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
5. With the main burner in operation, paint the pipe
joints (including the adapters) and gas control inlet
and outlet with a rich soap and water solution.
6. If another leak is detected, tighten the adapter
screws, joints and pipe connections.
7. Replace the part if the leak cannot be stopped.
Pilot Flame
The pilot flame should envelop 3/8 in. to 1/2 in.
(10 to 13 mm) of the thermopile tip.
Ignite Pilot Burner
1. Before lighting the pilot burner, turn the knob to its
lowest setting. Wait for unburned gas to vent.
WARNING
Explosion or Fire Hazard.
Can cause severe injury, death or property
damage.
LP gas is heavier than air and does not vent
upward. Smell for LP gas next to the floor. If you
smell gas, shut off the main valve in the gas
piping or "ON LP" at the tank. Perform the Gas
Leak Test to recheck the connections.
2. Light the pilot burner according to the appliance
manufacturer instructions.
SERVICE
WARNING
Fire or Explosion Hazard.
Can cause property damage, serious injury
or death.
Perform Gas Leak Test anytime work is done to
the system.
Thermopile Performance
Thermopiles require proper temperature differential
between the hot-junction (tip) and cold-junction (base) to
provide satisfactory operation of millivoltage gas controls.
Thermopiles perform less effectively when exposed to
excessive cold-junction or hot-junction temperatures.
Excessive cold-junction temperatures can be caused by
heat radiation from adjacent surfaces or high ambient air
temperatures. Excessive cold-junction temperatures can
be eliminated by shielding the pilot flame, or construct a
baffle to direct secondary air over the pilot burner base.
Excessive hot-junction temperatures can be eliminated
by proper flame adjustment.
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